SORPTION OF RHODAMINE-B BY MONTMORILLONITE AND LAPONITE

被引：46

作者：

GRAUER, Z ^{[1
]}

MALTER, AB ^{[1
]}

YARIV, S ^{[1
]}

AVNIR, D ^{[1
]}

机构：

[1] HEBREW UNIV JERUSALEM,INST CHEM,IL-91904 JERUSALEM,ISRAEL

来源：

COLLOIDS AND SURFACES | 1987年 / 25卷 / 01期

关键词：

CLAY - Spectroscopic Analysis - SPECTROSCOPY; INFRARED; -; Applications;

D O I：

10.1016/0166-6622(87)80268-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of rhodamine B by montmorillonite and laponite has been studied by visible (absorption and emission) and infrared spectroscopy, and X-ray diffraction. The dye is adsorbed as a uni-charged cation by a mechanism of cation exchange. The amount of this cation and consequently the degree of adsorption depend on pH and on the dye concentration. The adsorbed cation dye is located in the interlayer space. Due to steric hindrance no pi interactions occur between the clay and the aromatic compound and no metachromasy is observed.

引用

页码：41 / 65

页数：25

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